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Search: id:A147945
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A147945 Number of permutations of floor(i*6/5), i=0..n-1, with all sums of 2 through 5 adjacent terms respectively unique. +0
1
1, 2, 6, 16, 54, 260, 1236, 6360, 31636, 159064, 1028418, 6241800, 40763772, 268393912, 1814067010, 14763664426 (list; graph; listen)
OFFSET

1,2

CROSSREFS

Sequence in context: A147904 A147896 A147888 this_sequence A147936 A147927 A147919

Adjacent sequences: A147942 A147943 A147944 this_sequence A147946 A147947 A147948

KEYWORD

nonn

AUTHOR

Ron Hardin (rhhardin(AT)att.net) Nov 17 2008

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.


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